Israel is not a party to the US-Iran negotiations—and its private war against Hezbollah could have far-reaching impacts elsewhere in the Middle East.
The recently-announced US-Iran ceasefire framework has reduced tensions across much of the Middle East, particularly in the Persian Gulf region at the epicenter of the recent war. In spite of the ceasefire, however, the Israeli military has proceeded with its operations in Lebanon, and tensions remain high. Indeed, Israel has vowed to continue operations despite the broader diplomatic breakthrough—functionally decoupling the Lebanon front from the larger ceasefire process. Why is Israel continuing operations when everyone else is working to deescalate?
Israel Is Worried About Long-Term Northern Border Security
The Israeli objective is not simply about punishing Hezbollah, Iran’s allied proxy militia in Lebanon and a long-running thorn in Jerusalem’s side. Israeli military planners appear focused on creating a long-term security buffer along Israel’s northern border. Hezbollah spent years building rocket launch sites, tunnel networks, observation posts, and weapons storage facilities throughout southern Lebanon. Israeli officials increasingly argue that diplomatic arrangements have failed to prevent Hezbollah’s military buildup, so physical security is required. Therefore, the Israel Defense Forces ( IDF) is attempting to physically reshape the battle space rather than rely on diplomatic arrangements.
The current ground campaign in Lebanon is focused on the city of Nabatieh, border villages, and former Hezbollah logistics corridors. The campaign is not an armored blitz; instead, it has been methodical and engineering-heavy. Israel’s typical sequence has been to isolate an area, clear any local Hezbollah resistance, search for and destroy tunnels and military infrastructure, establish observation and fire-control positions, and move on. The goal of the campaign is to deny Hezbollah the terrain it previously used for concealment and launching sites against Israel.
The strategy is understandably heavy on engineering. Israeli forces are reportedly conducting tunnel demolition, road destruction, tree-line clearing, bunker removal, and terrain modification. In Lebanon, as elsewhere, guerrilla warfare depends heavily on concealment. Israel believes that if the terrain of southern Lebanon becomes less usable for insurgent activities, future attacks are less likely. In essence, the IDF is creating a buffer zone in the south, making it harder for Hezbollah to launch additional attacks.
Israel Can’t Stay at War with Hezbollah Forever
The campaign has had some success. Hezbollah has reportedly reduced large-scale attacks, perhaps to allow for diplomacy to proceed or to rebuild damaged networks. However, Hezbollah has not accepted Israel’s security vision for the region—meaning that a long-term conflict is still in the cards.
This is potentially a problem because Israel is not a direct signatory of the US-Iran agreement; Israel’s operations in Lebanon are independent. A major Israeli strike could trigger Iran pressure or proxy retaliation or the collapse of broader diplomatic relations. Similarly, a major Hezbollah attack could force an Israeli escalation, even if Washington and Tehran want calm. The US-Iran ceasefire deal is not scheduled to be signed until Friday, and the Israel-Lebanon situation could yet spoil it.
Israel has taken significant flak for its ongoing operations. International criticism is high, as is the diplomatic pressure on Jerusalem to stop. Simultaneously, the Israeli military is enduring wear and tear and prolonged deployments. So the costs for proceeding are significant.
Yet Israel proceeds. Why? Because Israelis perceive the risk of allowing Hezbollah to rebuild along the Lebanon-Israel border as more pronounced than continuing military operations. The underlying belief is that security must be physically built, not just negotiated. Whether the Israeli assumption proves correct is debatable and will take time to prove. Regardless, Israel plans to proceed without concern for the broader diplomatic framework taking place in the region. The military logic is focused on terraforming to create a security buffer against future attacks.
